Leog 2010, again, against typical audiophile policy, I cannot project on a combination I have not heard. There is not a much more unpredictable audio phenomenon than speaker / amp matchups. The 67000 is easier to drive (despite same efficiency / sensitivity) than 66000. At somewhat high sensitivity lots of amps can make them go nicely. Getting the last 10 hertz out of them requires an amp that is happy driving that bass.
But, at 250 watts you would sure think the Apollo would run the heck out of the 67000. I'll say this, the 67000 are so sweet and natural with good tubes, despite massive resolution and extension up top, that they are addictive.
But, at 250 watts you would sure think the Apollo would run the heck out of the 67000. I'll say this, the 67000 are so sweet and natural with good tubes, despite massive resolution and extension up top, that they are addictive.